This is the center of the stone platform, where an intricate image has
been carved into the stone itself. The stone seem to be able to move,
as it is a circular design with several circles, forming sort of a
giant target. Though from an aerial view the platform appears to be a
circular sun-like image. Perhaps a representation of an ancient sun
god, or a powerful magic seal which leads into the unknown. It's
rather strange that an open platform would be located here, in the
middle of the jungle. Clearly, there is a second purpose to it, rather
than just being an ornamental design. Perhaps this is a sacrifical
platform, where the tribes of the jungle would come to perform their
sacred rituals, that would explain the hint of blood stains which are
visible, to the trained eye, throughout the platform.